I am wondering if anyone is able to give me any idea on why this is happening. The pic is the first run on a cylindrical object that I was testing with bluetape over tinfoil. Usually it looks clean link the bottom half of the engraiving, but then suddenly, it just switched to this mesh looking pattern. I tried a number of times as well as increased the number of lines per inch and increased the power from 20% to 15% None of that worked.
I tried on flat plywood next to see if the rotary was an issue, but it ended up doing the same thing.
This is a 50W Blue and white Chinese model number 350 (500x300 bed)